/*
 * Copyright (C) 2018-2020. Huawei Technologies Co., Ltd. All rights reserved.
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package io.prestosql.configmanager;

import java.util.Map;
import java.util.Optional;

public interface ConfigSupplier
{
    /**
     * This method reture the configuration key-values stored in a map
     *
     * @return a map store configuration key-values
     */
    Map<String, String> getConfigKeyValueMap();

    /**
     * This method return the configurations value according to a key
     *
     * @return
     */
    Optional<String> getConfigValue(String key);
}
